A crash can be reproduced easily on IE 8 (internet explorer 8) by:
1. Highlight/Select text on the screen with mouse
2. Click on a hyperlink.
3. Results in a crash of the browser. Only happens when the Toolbar is installed and active.

Can also be reproduced by using the Ctrl-F and finding text on the screen (which in turns highlights the text). And then clicking on a link.

Please respond with a fix or workaround. I enjoy using the product but this issue is a showstopper.

It differs because I have found a way to constantly reproduce it. As it appears to be related to highlighting/selecting text and then clicking on a hyperling. Which the other topics didn't mention and I wasn't sure if that was the same issue as they reported or not since the only way I could reproduce it was to highligh/select text. I don't have any error information because when it crashes it only gives that error message and then the browser has to reload the tab. Looking in the event tab didn't render any helpful information.

I have reproduced the issue using IE 8 on:
64 bit Win 7 Professional
64 bit Vista Business
32 bit Vista Ultimate


Here is the entry in the Application Error Log:
Fault bucket 1484974672, type 1
Event Name: APPCRASH
Response: Not available
Cab Id: 0

Problem signature:
P1: iexplore.exe
P2: 8.0.7600.16385
P3: 4a5bc69e
P4: DiigoToolbar.4.0.2.dll
P5: 1.0.0.1
P6: 4ac16617
P7: c0000005
P8: 0002888e
P9:
P10:

Attached files:
C:\Users\EWEISS.BAOFFICE\AppData\Local\Temp\WER4FD4.tmp.WERInternalMetadata.xml

These files may be available here:
C:\Users\EWEISS.BAOFFICE\AppData\Local\Microsoft\Windows\WER\ReportArchive\AppCrash_iexplore.exe_3a81c9b044665d4d7cdff43e92210ed6efecb48_29bd66ae

Version=1
EventType=APPCRASH
EventTime=129204056884682185
ReportType=2
Consent=1
UploadTime=129204056885522269
ReportIdentifier=f7c7512c-725a-11df-8aa3-00256438a594
IntegratorReportIdentifier=f7c7512b-725a-11df-8aa3-00256438a594
WOW64=1
Response.BucketId=1484974672
Response.BucketTable=1
Response.type=4
Sig[0].Name=Application Name
Sig[0].Value=iexplore.exe
Sig[1].Name=Application Version
Sig[1].Value=8.0.7600.16385
Sig[2].Name=Application Timestamp
Sig[2].Value=4a5bc69e
Sig[3].Name=Fault Module Name
Sig[3].Value=DiigoToolbar.4.0.2.dll
Sig[4].Name=Fault Module Version
Sig[4].Value=1.0.0.1
Sig[5].Name=Fault Module Timestamp
Sig[5].Value=4ac16617
Sig[6].Name=Exception Code
Sig[6].Value=c0000005
Sig[7].Name=Exception Offset
Sig[7].Value=0002888e
DynamicSig[1].Name=OS Version
DynamicSig[1].Value=6.1.7600.2.0.0.256.48
DynamicSig[2].Name=Locale ID
DynamicSig[2].Value=1033
DynamicSig[22].Name=Additional Information 1
DynamicSig[22].Value=0a9e
DynamicSig[23].Name=Additional Information 2
DynamicSig[23].Value=0a9e372d3b4ad19135b953a78882e789
DynamicSig[24].Name=Additional Information 3
DynamicSig[24].Value=0a9e
DynamicSig[25].Name=Additional Information 4
DynamicSig[25].Value=0a9e372d3b4ad19135b953a78882e789
UI[2]=C:\Program Files (x86)\Internet Explorer\iexplore.exe
UI[3]=Internet Explorer has stopped working
UI[4]=Windows can check online for a solution to the problem.
UI[5]=Check online for a solution and close the program
UI[6]=Check online for a solution later and close the program
UI[7]=Close the program
LoadedModule[0]=C:\Program Files (x86)\Internet Explorer\iexplore.exe
LoadedModule[1]=C:\Windows\SysWOW64\ntdll.dll
LoadedModule[2]=C:\Windows\syswow64\kernel32.dll
LoadedModule[3]=C:\Windows\syswow64\KERNELBASE.dll
LoadedModule[4]=C:\Windows\syswow64\ADVAPI32.dll
LoadedModule[5]=C:\Windows\syswow64\msvcrt.dll
LoadedModule[6]=C:\Windows\SysWOW64\sechost.dll
LoadedModule[7]=C:\Windows\syswow64\RPCRT4.dll
LoadedModule[8]=C:\Windows\syswow64\SspiCli.dll
LoadedModule[9]=C:\Windows\syswow64\CRYPTBASE.dll
LoadedModule[10]=C:\Windows\syswow64\USER32.dll
LoadedModule[11]=C:\Windows\syswow64\GDI32.dll
LoadedModule[12]=C:\Windows\syswow64\LPK.dll
LoadedModule[13]=C:\Windows\syswow64\USP10.dll
LoadedModule[14]=C:\Windows\syswow64\SHLWAPI.dll
LoadedModule[15]=C:\Windows\syswow64\SHELL32.dll
LoadedModule[16]=C:\Windows\syswow64\ole32.dll
LoadedModule[17]=C:\Windows\syswow64\iertutil.dll
LoadedModule[18]=C:\Windows\syswow64\urlmon.dll
LoadedModule[19]=C:\Windows\syswow64\OLEAUT32.dll
LoadedModule[20]=C:\Windows\syswow64\CRYPT32.dll
LoadedModule[21]=C:\Windows\syswow64\MSASN1.dll
LoadedModule[22]=C:\Windows\system32\IMM32.DLL
LoadedModule[23]=C:\Windows\syswow64\MSCTF.dll
LoadedModule[24]=C:\Windows\system32\IEFRAME.dll
LoadedModule[25]=C:\Windows\syswow64\PSAPI.DLL
LoadedModule[26]=C:\Windows\system32\OLEACC.dll
LoadedModule[27]=C:\Windows\WinSxS\x86_microsoft.windows.common-controls_6595b64144ccf1df_6.0.7600.16385_none_421189da2b7fabfc\comctl32.dll
LoadedModule[28]=C:\Windows\syswow64\comdlg32.dll
LoadedModule[29]=C:\Program Files (x86)\Internet Explorer\IEShims.dll
LoadedModule[30]=C:\Windows\system32\uxtheme.dll
LoadedModule[31]=C:\Windows\system32\RpcRtRemote.dll
LoadedModule[32]=C:\Windows\system32\dwmapi.dll
LoadedModule[33]=C:\Windows\system32\CRYPTSP.dll
LoadedModule[34]=C:\Windows\syswow64\SETUPAPI.dll
LoadedModule[35]=C:\Windows\syswow64\CFGMGR32.dll
LoadedModule[36]=C:\Windows\syswow64\DEVOBJ.dll
LoadedModule[37]=C:\Windows\syswow64\CLBCatQ.DLL
LoadedModule[38]=C:\Windows\system32\propsys.dll
LoadedModule[39]=C:\Windows\system32\ntmarta.dll
LoadedModule[40]=C:\Windows\syswow64\WLDAP32.dll
LoadedModule[41]=C:\Windows\system32\rsaenh.dll
LoadedModule[42]=C:\Windows\system32\profapi.dll
LoadedModule[43]=C:\Program Files (x86)\Internet Explorer\ieproxy.dll
LoadedModule[44]=C:\Windows\system32\VERSION.dll
LoadedModule[45]=C:\Windows\syswow64\WININET.dll
LoadedModule[46]=C:\Windows\syswow64\Normaliz.dll
LoadedModule[47]=C:\Windows\syswow64\ws2_32.DLL
LoadedModule[48]=C:\Windows\syswow64\NSI.dll
LoadedModule[49]=C:\Windows\system32\dnsapi.DLL
LoadedModule[50]=C:\Windows\system32\iphlpapi.DLL
LoadedModule[51]=C:\Windows\system32\WINNSI.DLL
LoadedModule[52]=C:\Windows\system32\mswsock.dll
LoadedModule[53]=C:\Windows\system32\apphelp.dll
LoadedModule[54]=C:\Windows\System32\wshtcpip.dll
LoadedModule[55]=C:\Windows\System32\wship6.dll
LoadedModule[56]=C:\Windows\system32\rasadhlp.dll
LoadedModule[57]=C:\Windows\system32\RASAPI32.dll
LoadedModule[58]=C:\Windows\system32\rasman.dll
LoadedModule[59]=C:\Windows\system32\rtutils.dll
LoadedModule[60]=C:\Windows\system32\sensapi.dll
LoadedModule[61]=C:\Windows\system32\NLAapi.dll
LoadedModule[62]=C:\Windows\System32\fwpuclnt.dll
LoadedModule[63]=C:\Windows\system32\MLANG.dll
LoadedModule[64]=C:\Windows\system32\SXS.DLL
LoadedModule[65]=C:\Windows\SysWOW64\mshtml.dll
LoadedModule[66]=C:\Windows\SysWOW64\msls31.dll
LoadedModule[67]=C:\Windows\SysWOW64\ieapfltr.dll
LoadedModule[68]=C:\Windows\SysWOW64\Secur32.dll
LoadedModule[69]=C:\Windows\system32\msimtf.dll
LoadedModule[70]=C:\Windows\SysWOW64\jscript.dll
LoadedModule[71]=C:\Windows\SysWOW64\iepeers.dll
LoadedModule[72]=C:\Windows\SysWOW64\WINSPOOL.DRV
LoadedModule[73]=C:\Windows\system32\ImgUtil.dll
LoadedModule[74]=C:\Windows\SysWOW64\pngfilt.dll
LoadedModule[75]=C:\Windows\SysWOW64\Dxtrans.dll
LoadedModule[76]=C:\Windows\SysWOW64\ATL.DLL
LoadedModule[77]=C:\Windows\SysWOW64\ddrawex.dll
LoadedModule[78]=C:\Windows\SysWOW64\DDRAW.dll
LoadedModule[79]=C:\Windows\SysWOW64\DCIMAN32.dll
LoadedModule[80]=C:\Windows\system32\nvd3dum.dll
LoadedModule[81]=C:\Windows\system32\powrprof.dll
LoadedModule[82]=C:\Windows\SysWOW64\Dxtmsft.dll
LoadedModule[83]=C:\Windows\system32\msimg32.dll
LoadedModule[84]=C:\Windows\System32\msxml3.dll
LoadedModule[85]=C:\Windows\system32\WINMM.dll
LoadedModule[86]=C:\Windows\system32\MMDevAPI.DLL
LoadedModule[87]=C:\Windows\system32\wdmaud.drv
LoadedModule[88]=C:\Windows\system32\ksuser.dll
LoadedModule[89]=C:\Windows\system32\AVRT.dll
LoadedModule[90]=C:\Windows\system32\AUDIOSES.DLL
LoadedModule[91]=C:\Windows\system32\msacm32.drv
LoadedModule[92]=C:\Windows\system32\MSACM32.dll
LoadedModule[93]=C:\Windows\system32\midimap.dll
LoadedModule[94]=C:\Windows\SysWOW64\vbscript.dll
LoadedModule[95]=C:\Windows\SysWow64\Macromed\Flash\Flash10e.ocx
LoadedModule[96]=C:\Windows\system32\mscms.dll
LoadedModule[97]=C:\Windows\system32\USERENV.dll
LoadedModule[98]=C:\Windows\system32\credssp.dll
LoadedModule[99]=C:\Windows\SysWOW64\schannel.dll
LoadedModule[100]=C:\Windows\WinSxS\x86_microsoft.windows.gdiplus_6595b64144ccf1df_1.1.7600.16385_none_72fc7cbf861225ca\gdiplus.dll
LoadedModule[101]=C:\Windows\system32\D3DIM700.DLL
LoadedModule[102]=C:\PROGRA~2\WIC4A1~1\MESSEN~1\MSGSC1~1.DLL
LoadedModule[103]=C:\Windows\WinSxS\x86_microsoft.vc80.crt_1fc8b3b9a1e18e3b_8.0.50727.4927_none_d08a205e442db5b5\MSVCR80.dll
LoadedModule[104]=C:\Windows\system32\windowscodecs.dll
LoadedModule[105]=C:\Windows\system32\XmlLite.dll
LoadedModule[106]=C:\Windows\syswow64\WINTRUST.dll
LoadedModule[107]=C:\Windows\syswow64\imagehlp.dll
LoadedModule[108]=C:\Windows\system32\ncrypt.dll
LoadedModule[109]=C:\Windows\system32\bcrypt.dll
LoadedModule[110]=C:\Windows\SysWOW64\bcryptprimitives.dll
LoadedModule[111]=C:\Windows\system32\GPAPI.dll
LoadedModule[112]=C:\Program Files (x86)\Diigo\DiigoToolbar.4.0.2.dll
LoadedModule[113]=C:\Windows\system32\oledlg.dll
LoadedModule[114]=C:\Windows\system32\cryptnet.dll
LoadedModule[115]=C:\Windows\system32\Cabinet.dll
LoadedModule[116]=C:\Windows\system32\DEVRTL.dll
State[0].Key=Transport.DoneStage1
State[0].Value=1
FriendlyEventName=Stopped working
ConsentKey=APPCRASH
AppName=Internet Explorer
AppPath=C:\Program Files (x86)\Internet Explorer\iexplore.exe


Analysis symbol:
Rechecking for solution: 0
Report Id: f7c7512b-725a-11df-8aa3-00256438a594
Report Status: 0

I can reproduce as well. Very annoying. I have Vista 64 and same 4.0.2 release and IE 8. Sometimes when I click links my entire tab has to restart and an looking into the error message it states the Diggo Toolbar.

I can reproduce this on IE 8 and Vista 64.